CVE-2021-31475

Name: CVE-2021-31475
Creator: NVD / NIST
Published: 2021-05-21T15:15:07.877+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 6.49%

Last modified Jun 17, 2026

CVE-2021-31475 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. This vulnerability allows remote attackers to execute arbitrary code on affected installations of SolarWinds Orion Job Scheduler 2020.2.1 HF 2. Authentication is required to exploit this vulnerability. EPSS estimates a 6.49% chance of exploitation in the next 30 days.

Description

This vulnerability allows remote attackers to execute arbitrary code on affected installations of SolarWinds Orion Job Scheduler 2020.2.1 HF 2. Authentication is required to exploit this vulnerability. The specific flaw exists within the JobRouterService WCF service. The issue is due to the WCF service configuration, which allows a critical resource to be accessed by unprivileged users. An attacker can leverage this vulnerability to execute code in the context of an administrator. Was ZDI-CAN-12007.

Metrics

CVSS 3.1

8.8/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

6.49%

92.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-732

Affected Software

Vendor	Product	Versions	Update
Solarwinds	Orion Job Scheduler	2020.2.1	Hotfix2

References

https://documentation.solarwinds.com/en/success_center/orionplatform/content/release_notes/orion_platform_2020-2-5_release_notes.htmRelease Notes, Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-605/Third Party Advisory, VDB Entry
https://documentation.solarwinds.com/en/success_center/orionplatform/content/release_notes/orion_platform_2020-2-5_release_notes.htmRelease Notes, Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-605/Third Party Advisory, VDB Entry

Timeline

Published: May 21, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-31475?

How severe is CVE-2021-31475?

CVE-2021-31475 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 6.49% probability of exploitation in the next 30 days.

How do I fix CVE-2021-31475?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-31475?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST